Window-control mechanism



Nov. 10, 1925- s. w. NICHOLSON WINDOW CONTROL MECHANISM 2 Sheets-Smelt 1 Filed May 22.' 1922 llllllllll NOV. 10, 1925'- v S. W. NICHOLSON wINDow CONTROL MECHANISM 2 sheets-'sheet z Filed May 22. 1922 Patented Nov. 10, 1925.

NITED STAT-Es f vParri-:NT

STANLEY W. NICHOLSON, OF TOLEDO, OHIO, ABSIGNOB TO DURA. COMPANY,- OF

. TOLEDO, OHIO, A. CORPORATION OF DELAWARE.

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Application med :my 92,1922. serial No. 502,872. 4

To all whom it may cm2-cern.'

Be it known that I, STANLEY W. NICHOL- yson', a citizen of the United States of America, residing at Toledo, in the county 5 .of Lucas and State of Ohio, have invented ,certain new and useful Improvements in Window-Control Mechanisms, Aof which the following is a specification, reference being had therein to the accompanying drawings.` This invention relates to window control vmechanisms and particularly relates to control devices for the sliding windows ofy vehicles. C` The invention consists in the structural features and arrangement of parts hereinafter described.

In the drawings Y Figure 1 is an interior View of an automobile door equipped with the. improved control mechanlsm;

Figure 2 isan enlarged sectional view of the control mechanism taken on line 2 2 of Figure 1;

' Figure 3 Fi ure 2; l

' igure 4 is a view similar to Figure 3\but j showing the control arms in their normalposition` locking'the glass against movement.

In these views the reference character A.

designates an automobile door havin in its' upper portion the window opening and rovided 'with a closure for said window aving the nature of a sliding glass plate C.

enter a chamber D rmed, as is common plractice, vin the lower portion of thev doorA.'

is the usual 'lock board connectingthe uprights A of the door between the window opening B and Achamber D. A coiled coun- 40 ter-balance spring F is attached at its lower end tothe closure C at the lower edge thereis across section on line 3-3 of i Said closure in open fposition 1s adapted to o need not be described here as` be'low the same. Said bar G is channeled, as

indicated at G', to embrace the glass, and

some suitable adhesive G2 may be em loyed in the channel G to ri 'dly secure Alie bar tothe glass. It is pre erred, as shown in Figure 3, to form the rack teeth of the bar G acl-jacent the channel G and in proximity to the interior face of the glass C. H desig- Dates a slideway, formedoffelt or similar yieldable material, enga ed by the bar G.

vTo the inner face of the ook board E there is secured by screWsI a plate I providing av mounting for mechanism for vertically actuatingl the closure C and for latching the same. -Thus J is a bearing member mounted in said plate and projecting through the lock board E. K is a shaft journaled 1n said bearing and carrying an actuatin handle adjacent the inner face of the loc board. Adjacent the outer face of said board, there is mounted fast upon the shaft K a pair of oppositely projectin eccentrics M, respectively engaging in s ots N formed in corresponding extremities of a i air of adjacent formed with flanges Membracing saidl arms marginally of the slots N and thus maintaining the arms in operative engagement with the eccentrics. Said arms extend parallel to the plate C from the eccentrics M toward the rack-bar G and are gradually tapered from their eccentric-engaging ends to their opposite extremities, the latter bein proortioned toen age in the notches ormed v etween the teet of the rack-bar. The end faces of said. arms which engage the rack are preferably slightliy curved, asis best seen in Figure 3, an

duced neck ortion O, the purpose of which will resent y. appear. The arms O and O are crumed intermediately upon .a pin I secured to the plate I and projecting outwardly therefrom, passing throughthe lock board. Said arms are slmilarly slotted to engage said pin, as indicated at Q, said slots extending len hwise of the arms and being proportioned 1n length to permit such endwise shifting of the arms as the eccentrics M are adapted to effect. Each slotl Q, has a reduced extension toward the rack-engaging end of the arm, as indicated at R, and within said extension there is mounted a coiled spring S held in place b a tongue T projecting toward the pin P rom the end of said extension remote from said pin, the spring` adjacent said fades .the 'arms are formed with a slightlyy rebeing compressed between said end and said dle L, as indicated by the arrows in Figure 3, effects raising of the glass C, and lowering thereofl resultsfrom counter-clockwise turning of said handle. When the handle is released.. the arms 0 and O, owing to the effort of thesprings S, tend to assume the divergent relation shown in Figure l, the eccentrics M then occupying a vertically opposed relation, and the plate C being locked against movement either up or down. rIhe locking of said plate under the described conditions follows from the fact that the two eccentrics when vertically opposed form a brace between the larger ends of the arms, preventing the swinging thereof that must accompany any movement of the glass. Assuming the initial position of the control arms to be that shown in Figure 4, upon a clockwise turning of the handle, the two arms are rocked oppositely, the arm being retracted, before it can exercise a down pressure upon the rack and the arm 0 maintaining engagement with the rack during a half turn and consequently raising the rack plate C. When Vva half turn isv completed, the two arms will" have reversed their positions. During the next half turn, completing a revolution, the arm O will exercise the lifting effect and the arm O will be retracted. .Thus the two arms will alternate in eX- ercising a lifting effect upon the rack, this effect occurring while the corresponding eccentrics are swinging downwardly. When the eccentrics are undergoing the upward portion of their travel the arms vwill be retracted.' Upon counter clockwise actuation of the handle, the arms will act during upward travel of the eccentrics to lower the rack and'V will be retracted as the eccentrics undergo the downward portion of their movement.

Thus it is seen that locking of the sliding plate in any desired position vof adjustment is effected by simply releasing the handle, eliminating necessity for any locking vdevice auxiliary to the' mechanism which actuates travel of the glass.

What I claim as my invention is 1. In a window control mechanism. a sliding window member, a :rack bar carried thereby and extending in the direction of' travel thereof, a pair of co-pivotal -control arms having corresponding ends engaging said rack, and adapted for a limited ,bodily movement to or from the rack, means yieldably urging said arms'bodily toward the rack, a common means for rocking said arms and for alternately withdrawing the same bodily from the rack.

2. In a window control mechanism, the combination with a sliding window member, of a rack carried thereby and extending. in the direction of travel thereof, a stationary fulcrum member, a pair of control arms terminally engaging said rack and longitudinally slotted to engage said fulcrum member, said arms being also longitudinally slotted at their ends remote from the rack,

-an actuating shaft for said arms, oppositely disposed eccentrics upon said shaft and engaging respectively in the end slots of said arms, and means yieldably urging said arms toward the rack.

3. In a window control mechanism, a sliding window member, a stationary fulcrum member, a pair of actuating arms for the sliding member mounted upon said fulcrum element and slotted longitudinally to provide for a sliding of said arms into or out of engagement with the closure, guiding means for said arms engaging in the slots thereof, and springs arranged within the slots of said arms urging the latter into' engagement'with the window member.

4. In a window control mechanism, the combination with a sliding closure provided with a rack, of a. plurality of rotatable eccentrics, arms mounted on said eccentrics, each having but one end engageable with the teeth of .said rack, means on said eccentrics for guiding the same and means compelling movement of said arms to brin their ends into engagement with the rac teeth but permitting rotation of said eccentrics after the engagement.

5. In a window control mechanism, the combination with a sliding closure, of a plurality of rotatable eccentrics, a member upon said sliding closure, a cooperating member.

upon each eccentric, flanges upon each eccentric for guiding the respective cooperating members, one of said members having a series of teeth and the other a single bearm surface engageable with said teeth, an means cooperating with said eccentrics and in engagement at all times with said cooperating members for assisting in supporting the same. l

6. In a window control mechanism, the combination with a movable closure, of a plurality of rotatable eccentrics, a member upon said closure,

eccentrics, means tending to yieldably force said'cooperating members into engagement with said member .upon the closure, and

means cooperating with said eccentrics and sTNLnY w. NICHOLSON.

v cooperating members l having a lost motion connection with said 

